Device for converting motion



(No Model.)

J. W. JAMES. DEVICE FOR CONVERTING MOTION.

No, 423,322 Patented Mar. 11 1890.

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the same.

UNITED STATES PATENT OFFICE.

JACK w: JAMES, or CUBA, TENNESSEE.

SPECIFICATION forming part of Letters Application filed July 25, 1889.

To all whom it may concern:

Be it known that I, J AOK W. JAMES, a citi zen of the United States,residing at Cuba, in the county of Shelby and State of Tennessee, haveinvented new and useful Improvements in Devices for Converting Motion,of which the following is a specification.

My invention relates to an improved device for converting motion; and itconsists in the combination of two cog-wheels of equal size and providedwith the same number of teeth, each cog=wheel having a cam cast 011 orotherwise secured to one side, anumber of yieldingslides projecting fromsuitable points on the said cams, and a reciprocating rod adapted toengage said slides and thereby rotate the cams and attached cog-wheels,thus converting reciprocating motion into rotary motion, or by the samemeans therotary motion of the cog-wheels may be converted intoreciprocating motion.

In the annexed drawings, illustrating the invention, Figure l is a sideelevation, partly in section, of my improved devices for convertingmotion. Fig. 2 is an end elevation of Fig. 3 is a side view of amodification.

The letters A and B design-ate cogwheels of equal size and having thesame number of teeth. I

On one side of the wheel A is a cam O, and on the corresponding side ofthe wheel B is a cam D of the same form and size. These cams C and D arecast on or otherwise rigidly secured to the cog-wheels, and arereversely placed, as shown in Fig. l that is to say, their acting facesare located toward each-other. Adjacent to the acting faces of the camsO D is a reciprocating rod E, having an elongated lug or projection e onone side.

In order that the points of the cams O D may act on or be acted upon bythe lug c, it is necessary that they should be capable of beingprojected into its path. To this end the points of the cams are recessedto receive yielding steel slides F F E E that are normally projectedfrom the ends of the cams by means of spiral springs G, located in therear or inner ends of the recesses. The slides may be provided with,slots f to engage pins g, whereby they are prevented from dropping outof the recesses 72, or they may be attached Patent No. 423,322, datedMarch 11, 1890.

Serial No. 318,611. (No model.)

to the cams in any other suitable way. As shown in the drawings, thereciprocating rod E, which we will suppose is connected with a primemover, has just reached its extreme limit to the left, and by contact ofthe lug c with the slide F in the lower end of the cam G has caused thecog-wheel A to revolve in the direction of the arrow, thereby revolvingthe cog-wheel B in the opposite direction. \Vhile the rod E is travelingto the left the lower end of the cam D just clears the lug e near thepoint t', and by pressure of the slide F thereon 7 causes said slide tobe pushed back into its recess; but the moment the cam D passes the lugc the slide F is pushed out by its spring, and as the rod E passes tothe right the lug e catches against said slide F and thereby causes thecog-wheel B to continue its rotation in the direction of the arrow. Whenthe rodE reaches its limit to the right, the slide F of the cam C willbe in po sition to be acted on by the lug c on the return=stroke of therod E to the left, and in like manner the slide F of the camD will beacted on by the lug e on the next movement of the rod to the right. Acontinuous rotary motion is thus given to the cog-wheels A B by thereciprocating rod E without any liability of stoppage of the wheels on adeadcenter. So, likewise, if rotary motion is first imparted to thecog-wheels A B, they will transmit reciprocating motion to the rod E.

The cog wheels A B and attached cams C D are mounted on shafts K K, withwhich connected, or the reciprocating rod E can be connected by suitablemeans with the machinery to be driven. The rod E may be supported inappropriate guides. (Not shown.) If desired, the cams O and I) may beeach provided with three or more yielding slides, instead of only two,thereby gaining greater power.

I11 Fig. 3 I have shown a modification in which the cams G D occupyone-half one side of the cogwheels A B, respectively, and are providedwith cogs F, which correspond with cogs L on the reciprocating rod E.WVhen the rod E is moved to and fro, the cogs L will engage the cogs F,and so produce a steady and uniform motion of the cog-wheels. The slidesF F F F are employed either with or the machinery to be driven can besuitably without the cogs F to catch the rod E 011 its return motion.

Although I have described the Wheels AB as being cogged, it will beunderstood that, if preferred, they may be friction-wheels, and thecams, instead of being provided with cogs, may be friction-cams, therebysaving all lost motion of the cogs.

WVhat I claim as my invention is 1. In a device for converting motion,the combination, with a reciprocating rod, of two cog-Wheels and camssecured to the sides of said cog-wheels and provided With yieldingslides to engage the reciprocating rod, substantially as described.

2. The combination of the cog-Wheels A B, the cams O D, having slides FF and F F, provided with springs G, and the reciprocating rod E, havinga lug e to engage said slides, substantially as described.

3. The combination of the Wheels A B, the cams O D, having slides F F FF and the reciprocating rod E, substantially as described.

4. The combination of the cogged wheels A B, the cams C D, havingprojecting slides F F F F, and the reciprocating rod E, adapted toengage said cams, substantially as described.

I11 testimony whereof I have affixed my signature in presence of twoWitnesses.

JACK W. JAMES.

